spring读取配置文件内容并自动注入

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Service;

import java.util.Map;

@Service
@PropertySource(value={"classpath:venus.properties"})
public class SyncService {

  
    @Value("${default.pwd}")
    private String defaultPwd;

    @Value("${default.role}")
    private String defaultRole;

    @Value("${default.area}")
    private String defaultArea;

    //venus获取用户的默认分页大小
    private static int pageSize = 1000;

    public void venusUserSync(Map<String, Object> params) {

    }
}